AERA EVO-M Series, Руководство пользователя

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14
Installation of Components and Accessories
Description Symbol Values Effects in event of deviation
Hydrogen ion
concentration pH 7.5 − 9 < 7
> 9 Corrosion
Fouling
Calcium and
magnesium
content Hardness
(Ca/Mg) 4 − 8.5 °D > 8.5 Fouling
Chloride ions Cl– < 50 ppm Corrosion
Iron ions Fe³+ < 0.5 ppm Corrosion
Magnesium ions Mg²+ < 0.05 ppm Corrosion
Carbon dioxide CO
2
< 10 ppm Corrosion
Hydrogen sulphate H
2
S < 50 ppb Corrosion
Oxygen O
2
< 0.1 ppm Corrosion
Chlorine Cl
2
< 0.5 ppm Corrosion
Ammonia NH
3
< 0.5 ppm Corrosion
Ratio of carbons/
sulphates HCO
3
²-/SO
4
²- > 1 < 1 Corrosion
1/1.78 °D = 1 °Fr with 1 °Fr = 10 g CaCO
3
/m³
ppm = parts per million (mg/l)
ppb = parts per billion (μg/l)
Note
These limiting values are only basic
information about the water quality
and do not form any basis for a
guarantee!
Installation of air handling components for cooling/heating
DAMAGE TO THE UNIT!
When connecting the heat exchanger, counter force must be applied using pliers to
prevent damage.
The connections to the heat exchanger by others must always be tension-free.
Mechanical and static loads must not be applied to the connecting piece.
The heat exchanger must be connected in accordance with the counter flow principle (air
and water heat exchanger flow in opposite directions).
• Protect the surfaces of the fins in the heat exchanger from damage.
• Connect pipe system by others to the water inlet and outlet. The inlet and outlet coil
connections are marked using adhesive labels.
• Insulate pipes by others.